Head portion of a toothbrush



FIG. 1 is a front view of a head portion of a toothbrush according to a first embodiment of the new design;

FIG. 2 is a right side view thereof, the left side view being a mirror image thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a front perspective view thereof;

FIG. 7 is a rear perspective view thereof;

FIG. 8 is a close up right-side view of the head portion thereof;

FIG. 9 is a close up rear view of the head portion thereof; and

FIG. 10 is a close up rear perspective view of the head portion thereof.

FIG. 11 is a front view of the head portion of a toothbrush according to a second embodiment of the new design;

FIG. 12 is a right side view thereof, the left side view being a mirror image thereof;

FIG. 13 is a rear view thereof;

FIG. 14 is a bottom view thereof;

FIG. 15 is a top view thereof;

FIG. 16 is a front perspective view thereof;

FIG. 17 is a rear perspective view thereof;

FIG. 18 is a close up right-side view of the head portion thereof;

FIG. 19 is a close up rear view of the head portion thereof; and

FIG. 20 is a close up rear perspective view of the head portion thereof

FIG. 21 is a front view of the head portion of a toothbrush according to a third embodiment of the new design;

FIG. 22 is a right side view thereof, the left side view being a mirror image thereof;

FIG. 23 is a rear view thereof;

FIG. 24 is a bottom view thereof;

FIG. 25 is a top view thereof;

FIG. 26 is a front perspective view thereof;

FIG. 27 is a rear perspective view thereof;

FIG. 28 is a close up right-side view of the head portion thereof;

FIG. 29 is a close up rear view of the head portion thereof; and,

FIG. 30 is a close up rear perspective view of the head portion thereof.

The broken lines showing the bristle and handle structures illustrate environment of the head portion of a toothbrush that forms no part of the claimed design. 

CLAIM The ornamental design for a head portion of a toothbrush, as shown and described. 